IDGEN32_KEYLEN
g3 = idgen32_ftable[g2 ^ key[o++ & (IDGEN32_KEYLEN - 1)]] ^ g1;
g4 = idgen32_ftable[g3 ^ key[o++ & (IDGEN32_KEYLEN - 1)]] ^ g2;
g5 = idgen32_ftable[g4 ^ key[o++ & (IDGEN32_KEYLEN - 1)]] ^ g3;
g6 = idgen32_ftable[g5 ^ key[o++ & (IDGEN32_KEYLEN - 1)]] ^ g4;
u_int8_t id32_key[IDGEN32_KEYLEN];